US4666127A - Winch system - Google Patents

Winch system Download PDF

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Publication number
US4666127A
US4666127A US06/815,658 US81565885A US4666127A US 4666127 A US4666127 A US 4666127A US 81565885 A US81565885 A US 81565885A US 4666127 A US4666127 A US 4666127A
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Prior art keywords
winch
outhaul
barrel
inhaul
speed
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Expired - Lifetime
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US06/815,658
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John Allen
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B27/00—Arrangement of ship-based loading or unloading equipment for cargo or passengers
    • B63B27/18—Arrangement of ship-based loading or unloading equipment for cargo or passengers of cableways, e.g. with breeches-buoys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S254/00—Implements or apparatus for applying pushing or pulling force
    • Y10S254/90—Cable pulling drum having wave motion responsive actuator for operating drive or rotation retarding means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S254/00—Implements or apparatus for applying pushing or pulling force
    • Y10S254/903—Yieldable, constant engagement, friction coupling, e.g. slip clutch in drive for cable pulling drum

Definitions

  • the invention relates to winch systems for hauling payloads between relatively movable stations such as two ships, for example.
  • Winch systems are known for hauling payloads between a supply ship and a receiving ship.
  • the payload is supported on a trolley or pulley block running on a cable extending between the ships and is hauled along the cable by the winch system which comprises an inhaul winch for hauling towards the supply ship and an outhaul winch for hauling towards the receiving ship.
  • the winches are either both on the supply ship or the outhaul winch may be on the receiving ship and the inhaul winch on the supply ship.
  • the invention provide a simpler means of achieving suitable speeds of haulage.
  • a winch system comprises an inhaul winch and an outhaul winch each having a barrel driven by a motor, a control means for controlling the speed of said barrel of said inhaul winch, support means for supporting a payload and a cable arrangement connected to said support means and having end portions wound around respective barrels of said winches, said outhaul winch motor driving said outhaul winch barrel through a torque converter such that said outhaul winch provides pull on said support means regardless of the sense of rotation of said outhaul winch barrel, said control means controlling the speed of said inhaul winch barrel to control the speed of said support means.
  • the outhaul winch motor may have two speed settings, or be of multispeed or variable speed type so that a higher setting may be used optionally when the outhaul winch barrel is winding a cable, or as appropriate to the load being handled, to the environmental conditions, or when the system is unloaded.
  • the outhaul winch barrel may be driven by the torque converter through change-speed gearing so that a relatively higher speed of rotation of the outhaul winch barrel is available optionally in order to suit different loads of differing environments, or when the system is unloaded.
  • FIGS. 1 and 3 are schematic diagrams showing two alternative ways in which the winch system may be applied.
  • FIG. 2 is a schematic diagram showing a plan view of the winches shown in FIG. 1.
  • FIG. 1 shows a supply ship 10 and a receiving ship 12 between which a payload 14 is required to be transferred at sea.
  • the payload 14 is supported by a trolley 16 running on a jackstay cable 18 having one end attached to the ship 12 and the other end wound round a barrel 22 of an auto-tensioning winch 20 (see FIG. 2) on the supply ship 10.
  • the trolley 16 is connected by a cable arrangement 24 to inhaul and outhaul winch barrels 30, 32, respectively, of inhaul and outhaul winches 26, 28 (see FIG. 2) on the supply ship 10.
  • the cable 24 passes around a pulley 48 on the receiving ship 12.
  • FIG. 3 shows a similar scheme to that shown in FIG. 1 but the outhaul which is on the receiving ship 12.
  • the inhaul winch 26 comprises a DC electric motor (see FIG. 2), preferably controlled by a solid-state speed control system 42 (see FIG. 2) driving the inhaul winch barrel 30.
  • the outhaul winch 28 comprises an AC pole-changing 2-speed motor 36 (see FIG. 2) driving a hydrokinetic torque convertor 38 (see FIG. 2).
  • the output from the torque convertor 38 drives the outhaul winch barrel 32 through change-speed gearing 40 (see FIG. 2) giving two gear ratios, or if preferred more than two ratios.
  • the gearing 40 can also have a reverse gear facility for use when the system is being assembled.
  • the inhaul and outhaul winches 26, 28 may employ any form of drive input as alternatives to those described. For example, AC or hydraulic for the inhaul winch or DC or hydraulic for the outhaul winch.
  • the auto-tensioning winch 20 has a DC electric motor 44 controlled by a thyristor control system 46.
  • the torque convertor 38 is preferably of the kind available from British Twin Disc of Rochester, Kent under the designation "Type 4".
  • the outhaul winch 28 is set to provide a relatively light pull on the cable 24 so as to prevent the cable 24 trailing behind the trolley 16 from sagging unduly.
  • the motor 36 is energized in the sense such that the outhaul winch barrel 32 would, if free to do so, wind the cable.
  • the control system 42 is set such that the inhaul winch motor 34 is energized to drive the inhaul winch barrel 30 at a speed to overcome the pull of the outhaul winch 28, so that the outhaul barrel 32 is forced to pay out cable.
  • the required light pull in the trailing portion of the cable 24 is maintained by the torque convertor 38 and the input drive from the outhaul winch motor 36.
  • the speed of the approach of the trolley 16 to the supply ship 10 is controlled by the control system 42 controlling the energization of the inhaul winch motor 34 which is driving the inhaul winch barrel 30.
  • the same outhaul winch drive setting may be used, but the control system 42 is set to energize the inhaul winch motor 34 to drive the inhaul winch barrel 30 so as to pay out cable.
  • the change-speed gearing 40 of the outhaul winch 28 may be set to drive the outhaul winch barrel 32 at a lower gear ratio than before.
  • the outhaul winch 28 may be set to maximum pull, the change-speed gearing 40 being set to give the lower gear ratio and the outhaul winch motor 36 being energised at maximum speed.
  • the gear ratio of the gearing 40 and the speed of winch motor 36 would be selected depending upon the load transferred and the relative heights of the ends of the jackstay cable 18 on each ship.
  • Speed control as before is by way of the control system 42 which is set to energize the inhaul winch motor 34 to drive the inhaul winch barrel 30 to pay out cable but so as to resist the pull from the outhaul winch 28 so as to control the speed of the payload.
  • the inhaul winch 26 is thus the master winch so as to control the speed of the trolley 16 whatever the magnitude of the payload and regardless of direction of transfer.
  • the invention may be applied to transferring loads between ships or between a ship and an oil drilling rig or platform or between a ship and a lightship or lighthouse, for example.
  • the jackstay cable 18 may be tensioned by any suitable means which can be manually or automatically controlled, for example a winch having an AC motor, or an hydraulic motor, or a steam-driven winch, or a ram which can be used either with or without such a winch.
  • the control of the inhaul winch 26 may be automatically regulated according to the motion of the two ships so that as the load approaches either ship its speed is regulated to avoid undesirably harsh contact of the load or the trolley 16 with the ship concerned.
  • the trolley 16 can be any other suitable payload support means, for example a pulley block having a hook.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control And Safety Of Cranes (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Control Of Turbines (AREA)
  • Jib Cranes (AREA)

Abstract

A payload can be transferred between two relatively movable stations for example two ships using a winch system having an inhaul winch and an outhaul winch. The barrel of the outhaul winch is driven by an outhaul motor through a torque convertor such that the outhaul winch provides pull on the trolley 16 regardless of the sense of rotation of the outhaul winch barrel. A control system is used to control the speed of the inhaul winch barrel either to retrieve cable or to pay out cable. Thus, the speed of the trolley 16 is controlled by the speed at which the inhaul winch barrel is driven. The outhaul winch either can be at the same station as the inhaul winch or can be at the opposite station to the inhaul winch.

Description

This application is a continuation of application Ser. No. 605,293, filed Apr. 30, 1985 now abandoned.
BACKGROUND OF THE INVENTION
The invention relates to winch systems for hauling payloads between relatively movable stations such as two ships, for example.
Winch systems are known for hauling payloads between a supply ship and a receiving ship. The payload is supported on a trolley or pulley block running on a cable extending between the ships and is hauled along the cable by the winch system which comprises an inhaul winch for hauling towards the supply ship and an outhaul winch for hauling towards the receiving ship. The winches are either both on the supply ship or the outhaul winch may be on the receiving ship and the inhaul winch on the supply ship.
It has been proposed to control the speed of movement of the trolley or block by controlling the speed of first one winch then both winches and finally the other winch as the payload is traversed. Such control was proposed to be achieved by governing the winch pay-out rate of the or each winch concerned.
SUMMARY OF THE INVENTION
The invention provide a simpler means of achieving suitable speeds of haulage.
A winch system, according to the invention, comprises an inhaul winch and an outhaul winch each having a barrel driven by a motor, a control means for controlling the speed of said barrel of said inhaul winch, support means for supporting a payload and a cable arrangement connected to said support means and having end portions wound around respective barrels of said winches, said outhaul winch motor driving said outhaul winch barrel through a torque converter such that said outhaul winch provides pull on said support means regardless of the sense of rotation of said outhaul winch barrel, said control means controlling the speed of said inhaul winch barrel to control the speed of said support means.
The outhaul winch motor may have two speed settings, or be of multispeed or variable speed type so that a higher setting may be used optionally when the outhaul winch barrel is winding a cable, or as appropriate to the load being handled, to the environmental conditions, or when the system is unloaded.
The outhaul winch barrel may be driven by the torque converter through change-speed gearing so that a relatively higher speed of rotation of the outhaul winch barrel is available optionally in order to suit different loads of differing environments, or when the system is unloaded.
BRIEF DESCRIPTION OF THE DRAWINGS
A winch system will now be described to illustrate the invention by way of example with reference to the accompanying drawings, in which:
FIGS. 1 and 3 are schematic diagrams showing two alternative ways in which the winch system may be applied; and
FIG. 2 is a schematic diagram showing a plan view of the winches shown in FIG. 1.
DESCRIPTION OF THE PREFERRED EMBODIMENTS
FIG. 1 shows a supply ship 10 and a receiving ship 12 between which a payload 14 is required to be transferred at sea. The payload 14 is supported by a trolley 16 running on a jackstay cable 18 having one end attached to the ship 12 and the other end wound round a barrel 22 of an auto-tensioning winch 20 (see FIG. 2) on the supply ship 10.
The trolley 16 is connected by a cable arrangement 24 to inhaul and outhaul winch barrels 30, 32, respectively, of inhaul and outhaul winches 26, 28 (see FIG. 2) on the supply ship 10. The cable 24 passes around a pulley 48 on the receiving ship 12.
FIG. 3 shows a similar scheme to that shown in FIG. 1 but the outhaul which is on the receiving ship 12.
In both cases, the inhaul winch 26 comprises a DC electric motor (see FIG. 2), preferably controlled by a solid-state speed control system 42 (see FIG. 2) driving the inhaul winch barrel 30. In both cases the outhaul winch 28 comprises an AC pole-changing 2-speed motor 36 (see FIG. 2) driving a hydrokinetic torque convertor 38 (see FIG. 2). The output from the torque convertor 38 drives the outhaul winch barrel 32 through change-speed gearing 40 (see FIG. 2) giving two gear ratios, or if preferred more than two ratios. The gearing 40 can also have a reverse gear facility for use when the system is being assembled. The inhaul and outhaul winches 26, 28 may employ any form of drive input as alternatives to those described. For example, AC or hydraulic for the inhaul winch or DC or hydraulic for the outhaul winch. In both cases, the auto-tensioning winch 20 has a DC electric motor 44 controlled by a thyristor control system 46.
The plan arrangement shown in FIG. 2 would be applicable to the scheme shown in FIG. 3 also, except that the outhaul winch 28 would be located on the ship 12.
The torque convertor 38 is preferably of the kind available from British Twin Disc of Rochester, Kent under the designation "Type 4".
OPERATION
In hauling an empty trolley 16 or any quantity of payload towards the supply ship 10, the outhaul winch 28 is set to provide a relatively light pull on the cable 24 so as to prevent the cable 24 trailing behind the trolley 16 from sagging unduly. The motor 36 is energized in the sense such that the outhaul winch barrel 32 would, if free to do so, wind the cable.
The control system 42 is set such that the inhaul winch motor 34 is energized to drive the inhaul winch barrel 30 at a speed to overcome the pull of the outhaul winch 28, so that the outhaul barrel 32 is forced to pay out cable. The required light pull in the trailing portion of the cable 24 is maintained by the torque convertor 38 and the input drive from the outhaul winch motor 36.
The speed of the approach of the trolley 16 to the supply ship 10 is controlled by the control system 42 controlling the energization of the inhaul winch motor 34 which is driving the inhaul winch barrel 30.
When the empty trolley 16 or a light payload is to be sent to the receiving ship, the same outhaul winch drive setting may be used, but the control system 42 is set to energize the inhaul winch motor 34 to drive the inhaul winch barrel 30 so as to pay out cable.
If desired, the change-speed gearing 40 of the outhaul winch 28 may be set to drive the outhaul winch barrel 32 at a lower gear ratio than before.
When a heavy payload is to be transferred to the receiving ship 12, the outhaul winch 28 may be set to maximum pull, the change-speed gearing 40 being set to give the lower gear ratio and the outhaul winch motor 36 being energised at maximum speed. The gear ratio of the gearing 40 and the speed of winch motor 36 would be selected depending upon the load transferred and the relative heights of the ends of the jackstay cable 18 on each ship.
Speed control as before is by way of the control system 42 which is set to energize the inhaul winch motor 34 to drive the inhaul winch barrel 30 to pay out cable but so as to resist the pull from the outhaul winch 28 so as to control the speed of the payload.
The inhaul winch 26 is thus the master winch so as to control the speed of the trolley 16 whatever the magnitude of the payload and regardless of direction of transfer.
The invention may be applied to transferring loads between ships or between a ship and an oil drilling rig or platform or between a ship and a lightship or lighthouse, for example.
In alternatives, not shown, the jackstay cable 18 may be tensioned by any suitable means which can be manually or automatically controlled, for example a winch having an AC motor, or an hydraulic motor, or a steam-driven winch, or a ram which can be used either with or without such a winch. In another alternative, not shown, the control of the inhaul winch 26 may be automatically regulated according to the motion of the two ships so that as the load approaches either ship its speed is regulated to avoid undesirably harsh contact of the load or the trolley 16 with the ship concerned. In another alternative, not shown, the trolley 16 can be any other suitable payload support means, for example a pulley block having a hook.

Claims (4)

What I claim is:
1. A winch system for transferring a load between two spaced-apart stations comprising:
(a) support means for supporting a payload;
(b) a first cable arrangement extending between said stations and upon which said support means is mounted for movement relative to said stations;
(c) a second cable arrangement extending between said stations and being connected to said support means;
(d) an inhaul winch comprising a barrel around which a respective end portion of said second cable arrangement is wound and a motor the output from which selectably positively drives said barrel to take in or to pay out cable of said second cable arrangement, respectively;
(e) an outhaul winch comprising a barrel around which a respective end portion of said second cable arrangement is wound, a torque converter and a motor the output from which during a transfer operation drives said outhaul winch barrel through said torque converter in a sense to take in cable only whereby said outhaul winch provides a preset pull on said support means regardless of the sense of rotation of said outhaul winch barrel; and
(f) control means for selectively controlling the speed and sense of rotation of said output of said inhaul winch motor to said inhaul winch barrel, thereby controlling the speed of said support means in the respective sense of movement thereof.
2. A winch system according to claim 1, in which said outhaul winch motor is selected from a two speed motor, a multispeed motor or a variable speed motor.
3. A winch system according to claim 1 or claim 2, in which gearing interconnects said torque converter to said outhaul winch barrel.
4. The winch system according to claim 1, wherein the speed of said inhaul which is controllable by an operator of said control means and the pull of said outhaul winch is not controllable by said operator.
US06/815,658 1982-11-16 1985-12-30 Winch system Expired - Lifetime US4666127A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8232719 1982-11-16
GB08330395A GB2130164B (en) 1982-11-16 1983-11-15 Hauling between ships

Related Parent Applications (1)

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US06605293 Continuation 1985-04-30

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US4666127A true US4666127A (en) 1987-05-19

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US06/815,658 Expired - Lifetime US4666127A (en) 1982-11-16 1985-12-30 Winch system

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US (1) US4666127A (en)
BE (1) BE899725A (en)
DE (1) DE3419799A1 (en)
FR (1) FR2564447B1 (en)
GB (1) GB2130164B (en)
NL (1) NL191837C (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6651577B1 (en) 2002-07-17 2003-11-25 Christopher C. Gates Portable marine outhaul
US20050017228A1 (en) * 2003-07-22 2005-01-27 Werner Peter Harold Winch control method and apparatus
US20070119359A1 (en) * 2005-11-30 2007-05-31 Technip France Lashing of tender assist drilling unit to a floating production facility
US20110076122A1 (en) * 2008-05-21 2011-03-31 Peter Alvin Ritson Demountable Vehicle Body System
US9096294B1 (en) * 2011-06-20 2015-08-04 The United States Of America As Represented By The Secretary Of The Navy Trolley-payload inter-ship transfer system
CN106184629A (en) * 2016-07-05 2016-12-07 武汉船用机械有限责任公司 A kind of cableway vehicle peculiar to vessel
CN106395666A (en) * 2016-09-30 2017-02-15 武汉船用机械有限责任公司 Test system of maritime replenishing device
CN106564563A (en) * 2016-10-19 2017-04-19 武汉船用机械有限责任公司 A test device for a marine integrated replenishment system
CN106741665A (en) * 2016-12-19 2017-05-31 武汉船用机械有限责任公司 A kind of person conveying device suitable for cableway
US20190316727A1 (en) * 2018-04-13 2019-10-17 Rolls-Royce Power Engineering Plc Apparatus
US12077249B1 (en) * 2023-04-10 2024-09-03 Circle Seafoods, Inc. Method and apparatus for unloading fishing vessels

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Publication number Priority date Publication date Assignee Title
GB2240313B (en) 1989-12-27 1993-08-18 Northern Eng Ind Winch system
GB0623386D0 (en) * 2006-11-23 2007-01-03 Strachan & Henshaw Ltd Transfer apparatus
GB2456626B (en) 2008-12-24 2009-12-23 Inchplate Ltd Winching apparatus and method
NL2006183C2 (en) * 2011-02-11 2012-08-14 Ridderinkhof B V TRANSFER SYSTEM.

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US685579A (en) * 1900-01-17 1901-10-29 James G Delaney Conveying apparatus.
US2634099A (en) * 1946-10-10 1953-04-07 Charles M O'leary Automatic drilling machine
US3261591A (en) * 1963-08-29 1966-07-19 Algonquin Shipping & Trading Automatic self-tensioning winch
US3312452A (en) * 1964-05-08 1967-04-04 Gen Electric Co Ltd Winch arrangements
US3707922A (en) * 1967-05-29 1973-01-02 R Dillon Self-propelled vehicle system for use in transfer of materials
US3476361A (en) * 1967-11-07 1969-11-04 Kocks Gmbh Friedrich Warping and holding winch for ships
US3500764A (en) * 1968-02-19 1970-03-17 Wichita Clutch Co Inc Mechanism for transferring loads through tensioned,controlled cables
GB1286870A (en) * 1969-12-05 1972-08-23 Ca Minister Nat Defence Load transfer means
US3661090A (en) * 1970-01-09 1972-05-09 Nat Defence Canada Lateral load transfer
US3675794A (en) * 1971-04-29 1972-07-11 Gen Electric & English Elect Winch arrangements
US3713548A (en) * 1971-10-21 1973-01-30 Us Navy Folded tensioned highline system
US3787031A (en) * 1971-12-08 1974-01-22 Garrett Corp Cable drum highline system
US3971545A (en) * 1972-04-20 1976-07-27 Warman Charles P Fluid actuated dynamic brake

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6651577B1 (en) 2002-07-17 2003-11-25 Christopher C. Gates Portable marine outhaul
US20050017228A1 (en) * 2003-07-22 2005-01-27 Werner Peter Harold Winch control method and apparatus
US20070119359A1 (en) * 2005-11-30 2007-05-31 Technip France Lashing of tender assist drilling unit to a floating production facility
US7383784B2 (en) * 2005-11-30 2008-06-10 Technip France Lashing of tender assist drilling unit to a floating production facility
US20110076122A1 (en) * 2008-05-21 2011-03-31 Peter Alvin Ritson Demountable Vehicle Body System
US8602712B2 (en) * 2008-05-21 2013-12-10 Peter Alvin Ritson Demountable vehicle body system
US9096294B1 (en) * 2011-06-20 2015-08-04 The United States Of America As Represented By The Secretary Of The Navy Trolley-payload inter-ship transfer system
CN106184629A (en) * 2016-07-05 2016-12-07 武汉船用机械有限责任公司 A kind of cableway vehicle peculiar to vessel
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FR2564447B1 (en) 1989-03-10
NL191837C (en) 1996-09-03
BE899725A (en) 1984-09-17
GB2130164B (en) 1985-11-20
FR2564447A1 (en) 1985-11-22
GB8330395D0 (en) 1983-12-21
GB2130164A (en) 1984-05-31
DE3419799A1 (en) 1985-11-28
NL191837B (en) 1996-05-01
NL8401590A (en) 1985-12-16
DE3419799C2 (en) 1993-05-19

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